Patent GB-1030988-A (GB)
Title: Free-flowing acid compositions
IPC: A23L1/00
Filed: 1965-03-16
Abstract: The free-flowing acid composition described and claimed in the parent Specification is improved or modified and comprises powdered fumaric and/or adipic acid in admixture with a surfactant and, as flow conditioner, powdered calcium carbonate and/or magnesium carbonate. It is preferred that the proportions of the surfactant and flow conditioner be 0.01-1.0% and 0.1-3.0%, respectively, by weight of the acid present and that the acid and flow conditioner are each of substantially uniform particle size below 15 microns, preferably 10-12 microns for the particles of acid and 0.6 microns in the case of particles of calcium carbonate.  A beverage base for fruit drinks may consist of 0.25-1.75% (based on the weight of beverage base) of artificial fruit flavouring, 0.1-0.3% of a non-toxic, water-soluble red dye, 14-29% of the acid composition and the balance of dextrose. The following further disclosure as to the surfactants is given: polyethenoxy ethers of alkyl phenols, polyethenoxy ethers of alcohols, difunctional and polyfunctional polyethenoxy esters, polyethenoxy esters, polyethenoxy compounds with amide links, polyhydroxy esters and polyoxypropylene glycol esters; carboxylic acids with intermediate links, monoglycerides, monoglycol esters of fatty acids, sulphuric esters such as alkyl alkali metal sulphates, sulphated partially etherified glycerols, esters and ether linked sulphonates, amide linked sulphonates and higher alkyl aryl sulphonates; non-quarternary nitrogen bases, such as those formed by the condensation reaction of ethylene oxide with a primary amine, which can also have ether intermediate linkages, and quaternary nitrogen bases such as those formed by the reaction of lead tertiary amine with alkyl halide or sulphate.  A mixture of anionic and non-ionic or cationic and non-ionic surfactants may be employed. Particular surfactants additionally mentioned are methyl dodecylbenzene trimethyl ammonium chloride, sodium lauryl sulphonate, sodium dodecylbenzene sulphonate and polyoxyethylene nonyl phenol.ALSO:The free-flowing acid composition described and claimed in the parent Specification is improved or modified and comprises powdered fumaric and/or adipic acid in admixture with a surfactant and, as flow conditioner, powdered calcium carbonate and/or magnesium carbonate. Surfactants mentioned are polyethenoxy ethers of alkyl phenols, polyethenoxy ethers of alcohols, difunctional and polyfunctional polyethenoxy esters, polyethenoxy esters, polyethenoxy compounds with amide links, polyhydroxy esters and polyoxypropylene glycol esters; carboxylic acids with intermediate links, monoglycerides, monoglycol esters of fatty acids, sulphuric esters such as alkyl alkali metal sulphates, sulphated partially etherified glycerols, esters and ether linked sulphonates, amide linked sulphonates and higher alkyl aryl sulphonates; non-quaternary nitrogen bases, such as those formed by the condensation reaction of ethylene oxide with a primary amine, which can also have ether intermediate linkages, and quaternary nitrogen bases such as those formed by the reaction of lead tertiary amine with alkyl halide or sulphate. A mixture of anionic and non-ionic or cationic and non-ionic surfactants may be employed.  Particular surfactants additionally mentioned are methyl dedecylbenzene trimethyl ammonium chloride, sodium lauryl sulphonate, sodium dodecylbenzene sulphonate and polyoxyethylene nonyl phenol.